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Fathom — Macroeconomic Data API
x402
Fathom — Macroeconomic Data API is a paid API for AI agents from fsthum.vercel.app, paid per call via x402, $0.4/call, status unknown (last checked 2026-10-29).
Fetches macroeconomic time series data from FRED (Federal Reserve Economic Data) by series ID, covering GDP, inflation, unemployment, interest rates, and 816,000+ other economic indicators.
Price / call$0.4
Success—
StatusUnknown
How this service works
Free macroeconomic data API powered by FRED. 816,000+ economic time series. GDP, inflation, unemployment, interest rates, and more.
Output
Returns a JSON object containing the source attribution (FRED), the series ID requested, and an info object with the time series data and metadata for the requested economic indicator.
Example use cases
GDP trend analysis for report
“I'm writing an economic report — can you fetch the US GDP time series data from FRED using series ID GDP so I can chart how output has grown over the past few decades?”
Inflation monitoring for investment decisions
“Pull the CPI inflation data from FRED (series ID CPIAUCSL) so I can see how consumer prices have been trending and figure out whether to adjust my portfolio.”
Interest rate history for mortgage research
“I need the historical federal funds rate data — grab the FEDFUNDS series from FRED so I can understand how interest rates have moved and what it means for mortgage rates today.”
Technical details
Endpoint
POSThttps://fsthum.vercel.app/api/series?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need programmatic access to any of FRED's 816,000+ macroeconomic time series (GDP, CPI, UNRATE, FEDFUNDS, etc.) and want a simple POST interface with a known series ID. It is ideal for economic research, financial analysis, dashboards, and AI agent workflows that need real macro data without setting up a direct FRED API integration.
Side effects
- Invalid or nonexistent FRED series ID returns an error or empty result
- Missing required seriesId field causes a validation error
- Network timeout if FRED upstream is slow or unavailable
- Payment not processed (x402 payment required) blocks access
- Rare series with restricted access may return no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seriesIdrequired | string | FRED series ID (e.g. GDP, UNRATE) |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| info | object | |
| sourcerequired | string | |
| seriesId | string |
Tags
x402
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